{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Electromagnetic Radiation: Variational Methods, Waveguides and Accelerators","author_name":"Kimball Milton, J. Schwinger","thumbnail_url":"https://www.ebooknetworking.net/books/354/029/big3540293043.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-3540293043.html\">Electromagnetic Radiation: Variational Methods, Waveguides and Accelerators</a>","width":400,"height":300}